Have a look at the linux kernel IDE drivers, look for
Generic IDE Chipset support Generic PCI bus-master DMA support
Keean.
Lennart Augustsson wrote:
What is this standard BusMaster interface you talk about? I must have missed something. I've yet to see two PCI chips that do DMA the same way.
-- Lennart
Keean Schupke wrote:
I thought the BusMaster interface was pretty uniform, unlike the earlier DMA interfaces which varied from chipset to chipset.
Keean.
Lennart Augustsson wrote:
But there are plenty of minor variations on how to program and initiate DMA for different devices.
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